Nissan Juke Service and Repair Manual : Component parts

Component Part Location

1. BCM

1. BCM
With Intelligent Key: Refer to BCS- 6, "BODY CONTROL SYSTEM : Component Parts Location".

Without Intelligent Key: Refer to BCS-96, "BODY CONTROL SYSTEM : Component Parts Location".

2. Magnet clutch
3. Refrigerant pressure sensor 4. ECM Refer to EC-25, "ENGINE CONTROL SYSTEM : Component Parts Location".

With Intelligent Key: Refer to PCS- 5, "Component Parts Location".

Without Intelligent Key: Refer to PCS-37, "Component Parts Location".

6. A/C control
7. Thermo control amp.
8. Blower fan resistor
 9. Blower motor

A. Left side of A/C unit assembly B. Back side of A/C unit assembly C. Right side of A/C unit assembly

Component Description

A/C unit assembly : Thermo Control Amp.

A/C unit assembly : Thermo Control Amp.

Thermo control amp. is composed of thermistor and amplifier. Thermistor is installed on evaporator, and amplifier is attached to foot duct.

When the thermistor detecting temperature of the evaporator fin is extremely low, thermo control amp. sends the thermo control amp. OFF signal to BCM, and stops the compressor.

A/C unit assembly : Blower Motor

The blower motor utilizes a brush-less motor with a rotating magnet.

Quietness is improved over previous motors where the brush was the point of contact and the coil rotated.

A/C unit assembly : Blower Fan Resistor

A/C unit assembly : Blower Fan Resistor

Compact and lightweight resistor is adopted with outstanding ventilation.

Temperature fuse is installed to protects the blower motor circuit.

A/C Control

A/C Control

Controls the air conditioning function.


BCM transmits A/C ON signal and blower fan ON signal to ECM via CAN communication, according to A/C switch signal and blower fan ON signal that are received from A/C control and thermo control amp. signal that is received from thermo control amp. and A/C indicator is turned ON.


ECM, when receiving A/C ON signal and blower fan ON signal from BCM, transmits A/C compressor request signal to IPDM E/R via CAN communication according to status of the engine and refrigerant pressure.


A/C relay is integrated in IPDM E/R. IPDM E/R operates A/C relay when A/C compressor request signal is received from ECM via CAN communication line.

Refrigerant Pressure Sensor


The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it to ECM.

ECM operates cooling system protection and idle speed control according to voltage value that is input.



The refrigerant pressure sensor is a capacitance type sensor. It consists of a pressure detection ares and a signal processing area.

The pressure detection area, which is a variable capacity condenser, changes internal static capacitance according to pressure force.

The signal processing area detects the static capacitance of the pressure detection area, converts the static capacitance into a voltage value, and transmits the voltage value to ECM.

Magnet Clutch

Compressor is driven by the magnet clutch which is magnetized by electric power supply.

    System Diagram System Description DESCRIPTION Manual air conditioning system is controlled by each function of thermo control amp., BCM, ECM and IPDM E/R. Fan speed of blower motor is cha ...

    Other materials:

    Back door opener switch
    Component Function Check 1.CHECK FUNCTION 1. Select TRUNK of BCM using CONSULT-III. 2. Select TRNK OPNR SW in DATA MONITOR mode. 3. Check that the function operates normally according to the following conditions. Is the inspection result normal? YES >> Back door opener switch ...

    Push-button ignition switch position indicator does not illuminate
    Description Before performing the diagnosis in the following table, check Work Flow. Refer to PCS-88, "Work Flow". Check that vehicle is under the condition shown in Conditions of vehicle before starting diagnosis, and check each symptom. Conditions of Vehicle (Operating ...

    Additional service when replacing ECM
    Description When replacing ECM, this procedure must be performed. Work Procedure 1.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS Refer to SEC-50, "BCM : Special Repair Requirement" (With intelligent key system), SEC-190, "BCM : Work Proce ...